Wondering what is a computer virus? This is a small program that piggybacks on legitimate programs. It passes from one computer to another in the same way that a biological virus does. If there is virus on your computer it can infect other programs and documents and make your life miserable.
How will you understand whether your computer is infected by viruses or not? There are several symptoms. If your computer is running slower than normal, or if the computer stops or locks up, then it is probably infected by viruses. There are other signs as well. If your computer crashes and restarts every few minutes and it restarts on its own then too, your computer is perhaps infected. Do applications on your PC not run properly? Is the hard drive or disk not accessible? Is it showing unusual error messages? Perhaps your computer is infected.
Let's take a look at the types of computer viruses. E-mail viruses are the most common one in this regard. These viruses fly around through email. Trojan horses are another malicious object that poses threat to your computer security. Another notable name is worm. This is a program that looks for a small hole in computer network security and copies itself on to other computers on that network.
There are various ways by which viruses get into your computer. While you download a program from an unknown source and run it on your PC, viruses can infect your computer. If you open a file attachment from an e-mail from an unknown user, then too your computer might get infected. Sometimes, viruses also come while opening an electronic greeting card, audio and video files.
There are various ways to protect your PC from a virus. It is strongly recommended not to open any attachments you receive in an e-mail without scanning it. The best option is just DELETE the e-mail right away. You must scan any file with an anti-virus program before copying the file to your PC. While downloading a file from the Internet, the best way is to copy it to your hard drive first. Then scan it with an anti-virus program and then run it. You should use an anti-virus program that will scan all your incoming and outgoing e-mails. It should also act as a firewall to protect your PC from viruses.
Title : How To Protect Your PC
Description : Wondering what is a computer virus? This is a small program that piggybacks on legitimate programs. It passes from one computer to another i...